. >> there was a black bag and law enforcement is pleading with anyone with pitchers, videos, anything that will help them solve the case. the bomber may have been seen a missed the crowd at the marathon carrying an unusual heavy nylon bag. >> mean time, we are learning more about the victims of the bomb blast. 8 year-old martin richard and 29 year-old chkrystle campbell, and a chinese graduate student lu lingzi were killed in the explosion. 29 year-old kyst le campbell was standing near the finish line when the bombs exploded. her mother patty campbell could not stop sobbing as she talked about her daughter. >> i am hard broken. she was a wonderful paperson. ever wonder anew our loved her. you cannot tax for a better daughter. i cannot believe that this has happened. this does not make any sense. >> several boston area public safety unions are offering a 50 declined thousand dollar reward leading to the arrest and conviction of those responsible for the attack. >> are arrests have been made in the murder of a bay area paramedic who was driving in oakland hills area. five arrests, all